ABAP Select data from SAP table EFORMULA_SCREEN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EFORMULA_SCREEN table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to EFORMULA_SCREEN. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the EFORMULA_SCREEN table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_EFORMULA_SCREEN TYPE STANDARD TABLE OF EFORMULA_SCREEN,
      WA_EFORMULA_SCREEN TYPE EFORMULA_SCREEN,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <EFORMULA_SCREEN> TYPE EFORMULA_SCREEN.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_EFORMULA_SCREEN.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM EFORMULA_SCREEN
  INTO TABLE IT_EFORMULA_SCREEN.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EFORMULA_SCREEN
*  INTO TABLE @DATA(IT_EFORMULA_SCREEN2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_EFORMULA_SCREEN INDEX 1 INTO DATA(WA_EFORMULA_SCREEN2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_EFORMULA_SCREEN ASSIGNING <EFORMULA_SCREEN>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EFORMULA_SCREEN>-HEADER = 1.
<EFORMULA_SCREEN>-MANDT = 1.
<EFORMULA_SCREEN>-FORMULA = 1.
<EFORMULA_SCREEN>-FORMULAFUNC = 1.
<EFORMULA_SCREEN>-FORMULATEXT = 1.

ENDLOOP.

LOOP AT IT_EFORMULA_SCREEN INTO WA_EFORMULA_SCREEN.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EFORMULA_SCREEN-FORMULA_REF, sy-vline,
  WA_EFORMULA_SCREEN-FORMULADOCU, sy-vline,
  WA_EFORMULA_SCREEN-PROFTYPE, sy-vline,
  WA_EFORMULA_SCREEN-INPUT_PARM, sy-vline,
  WA_EFORMULA_SCREEN-MANDT, sy-vline,
  WA_EFORMULA_SCREEN-FORMULA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EFORMULA_SCREEN you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_EFORMULA_SCREEN TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_EFORMULA_SCREEN INTO WA_EFORMULA_SCREEN.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit CUNIT, internal->external for field MASS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EFORMULA_SCREEN-MASS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EFORMULA_SCREEN-MASS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit LUNIT, internal->external for field MASSC6
CALL FUNCTION 'CONVERSION_EXIT_LUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EFORMULA_SCREEN-MASSC6
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EFORMULA_SCREEN-MASSC6.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MASS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EFORMULA_SCREEN-MASS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EFORMULA_SCREEN-MASS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit LUNIT, internal->external for field MASSC6
CALL FUNCTION 'CONVERSION_EXIT_LUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EFORMULA_SCREEN-MASSC6
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EFORMULA_SCREEN-MASSC6.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_EFORMULA_SCREEN_STR, 
HEADER TYPE STRING,
MANDT TYPE STRING,
FORMULA TYPE STRING,
FORMULAFUNC TYPE STRING,
FORMULATEXT TYPE STRING,
FORMULA_REF TYPE STRING,
FORMULADOCU TYPE STRING,
PROFTYPE TYPE STRING,
INPUT_PARM TYPE STRING,
MANDT TYPE STRING,
FORMULA TYPE STRING,
PARTYPE TYPE STRING,
PARNUMBER TYPE STRING,
PROFVALCAT TYPE STRING,
INPREPEATABLE TYPE STRING,
IS_MR_PROFILE TYPE STRING,
PREVINTERVALS TYPE STRING,
FL_VALUE_ALLOWED TYPE STRING,
DIMID TYPE STRING,
MASS TYPE STRING,
DETVARID TYPE STRING,
DEFVALUE_ALLOWED TYPE STRING,
PROFVALCATTEXT TYPE STRING,
FORMPARTEXT TYPE STRING,
DETVARTXT TYPE STRING,
MASSC6 TYPE STRING,
T_INPUT_PARM TYPE STRING,
OUTPUT_PARM TYPE STRING,
MANDT TYPE STRING,
FORMULA TYPE STRING,
PARTYPE TYPE STRING,
PARNUMBER TYPE STRING,
PROFVALCAT TYPE STRING,
PREVINTERVALS TYPE STRING,
PROFVALCATTEXT TYPE STRING,
FORMPARTEXT TYPE STRING,
DIMID TYPE STRING,
MASS TYPE STRING,
MASSC6 TYPE STRING,
T_OUTPUT_PARM TYPE STRING,
CALC_MODE TYPE STRING,
EMANDT TYPE STRING,
FORMULA TYPE STRING,
PARTYPE TYPE STRING,
PARNUMBER TYPE STRING,
FORMULAMOD TYPE STRING,
FORMMODDEFAULT TYPE STRING,
FORMULAMODTXT TYPE STRING,
T_CALCMODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EFORMULA_SCREEN_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_EFORMULA_SCREEN_STR-HEADER sy-vline 
WA_EFORMULA_SCREEN_STR-MANDT sy-vline 
WA_EFORMULA_SCREEN_STR-FORMULA sy-vline 
WA_EFORMULA_SCREEN_STR-FORMULAFUNC sy-vline 
WA_EFORMULA_SCREEN_STR-FORMULATEXT sy-vline 
WA_EFORMULA_SCREEN_STR-FORMULA_REF sy-vline 
WA_EFORMULA_SCREEN_STR-FORMULADOCU sy-vline 
WA_EFORMULA_SCREEN_STR-PROFTYPE sy-vline 
WA_EFORMULA_SCREEN_STR-INPUT_PARM sy-vline 
WA_EFORMULA_SCREEN_STR-MANDT sy-vline 
WA_EFORMULA_SCREEN_STR-FORMULA sy-vline 
WA_EFORMULA_SCREEN_STR-PARTYPE sy-vline 
WA_EFORMULA_SCREEN_STR-PARNUMBER sy-vline 
WA_EFORMULA_SCREEN_STR-PROFVALCAT sy-vline 
WA_EFORMULA_SCREEN_STR-INPREPEATABLE sy-vline 
WA_EFORMULA_SCREEN_STR-IS_MR_PROFILE sy-vline 
WA_EFORMULA_SCREEN_STR-PREVINTERVALS sy-vline 
WA_EFORMULA_SCREEN_STR-FL_VALUE_ALLOWED sy-vline 
WA_EFORMULA_SCREEN_STR-DIMID sy-vline 
WA_EFORMULA_SCREEN_STR-MASS sy-vline 
WA_EFORMULA_SCREEN_STR-DETVARID sy-vline 
WA_EFORMULA_SCREEN_STR-DEFVALUE_ALLOWED sy-vline 
WA_EFORMULA_SCREEN_STR-PROFVALCATTEXT sy-vline 
WA_EFORMULA_SCREEN_STR-FORMPARTEXT sy-vline 
WA_EFORMULA_SCREEN_STR-DETVARTXT sy-vline 
WA_EFORMULA_SCREEN_STR-MASSC6 sy-vline 
WA_EFORMULA_SCREEN_STR-T_INPUT_PARM sy-vline 
WA_EFORMULA_SCREEN_STR-OUTPUT_PARM sy-vline 
WA_EFORMULA_SCREEN_STR-MANDT sy-vline 
WA_EFORMULA_SCREEN_STR-FORMULA sy-vline 
WA_EFORMULA_SCREEN_STR-PARTYPE sy-vline 
WA_EFORMULA_SCREEN_STR-PARNUMBER sy-vline 
WA_EFORMULA_SCREEN_STR-PROFVALCAT sy-vline 
WA_EFORMULA_SCREEN_STR-PREVINTERVALS sy-vline 
WA_EFORMULA_SCREEN_STR-PROFVALCATTEXT sy-vline 
WA_EFORMULA_SCREEN_STR-FORMPARTEXT sy-vline 
WA_EFORMULA_SCREEN_STR-DIMID sy-vline 
WA_EFORMULA_SCREEN_STR-MASS sy-vline 
WA_EFORMULA_SCREEN_STR-MASSC6 sy-vline 
WA_EFORMULA_SCREEN_STR-T_OUTPUT_PARM sy-vline 
WA_EFORMULA_SCREEN_STR-CALC_MODE sy-vline 
WA_EFORMULA_SCREEN_STR-EMANDT sy-vline 
WA_EFORMULA_SCREEN_STR-FORMULA sy-vline 
WA_EFORMULA_SCREEN_STR-PARTYPE sy-vline 
WA_EFORMULA_SCREEN_STR-PARNUMBER sy-vline 
WA_EFORMULA_SCREEN_STR-FORMULAMOD sy-vline 
WA_EFORMULA_SCREEN_STR-FORMMODDEFAULT sy-vline 
WA_EFORMULA_SCREEN_STR-FORMULAMODTXT sy-vline 
WA_EFORMULA_SCREEN_STR-T_CALCMODE sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.